Who we are


Our investment team and advisory board have global experience

Executive Team

Portfolio Management

Roscoe Widdup

Roscoe has earned a Bachelor of Business (Business Information Systems) from RMIT University.

Prior to T8, Roscoe spent three years as a partner and Portfolio Manager at the Eye Investment Fund, specialising in the fundamental equity exposures within the global multi asset class portfolio. The equity portfolio within the fund was focused on global natural resources and energy technology.

Roscoe has deep industry experience in investment having spent eight years with Goldman Sachs including five years in the Asset Management Division as an investment manager responsible for mining and energy stocks within GSAM’s A$7 billion Australian equities portfolios. Roscoe also spent two years in the Securities Division as an analyst in the Mining Research team.

Prior to working at Goldman Sachs, Roscoe worked at Rio Tinto as a financial analyst and at Ernst & Young in the Risk Advisory Services division.

Portfolio Management

Dimitri Tsangalis PhD

Dimitri has earned a PhD in Biochemistry and a Masters of Health Economics and International Policy from The London School of Economics and Political Science (LSE).

Dimitri is an expert in portfolio construction, investment process optimisation and the management of multi asset class portfolios. His asset class experience includes listed equities, fixed income, currencies and commodities.

Dimitri applies quantitative systematic strategies, risk parity and factor research to portfolios with the aim of enhancing returns and managing risk.

He was previously a senior manager with QSuper after spending most of his career with J.P. Morgan in the Private Bank in Europe and the Asia Pacific.


Tonya Payne

Tonya has earned a Bachelor of Engineering (Environmental) and a Masters of Environmental Management (Sustainable Development) from the University of Queensland and has over 15 years’ experience as a specialist in the field of environment and sustainability.

Tonya’s experience includes working as an environmental consultant focused on obtaining environmental approvals for industrial and mining clients, due diligence reviews for potential purchasers of manufacturing and mining projects, as well as assisting corporations develop and implement environmental management systems. She has also worked for WMC as an environmental advisor which involved developing and implementing the Environmental Management System for WMC Fertilisers, as well as auditing its environmental and corporate sustainability reporting processes.


Timothy McIntyre

Timothy has earned a Bachelor of Commerce and a Bachelor of Business Management from the University of Queensland. Timothy is currently studying towards a Master of Economics degree.

Prior to joining T8, Timothy spent four years working as an analyst for Vanguard Investments Australia. Timothy specialised in portfolio and index data analytics supporting risk monitoring and trade best execution. Prior to Vanguard, Timothy worked for QSuper (now named the Australian Retirement Trust and remains one of Australia’s largest superannuation funds) in fund operations and compliance. Timothy has experience in listed equities, fixed income, and currency hedging as well as trade monitoring (ensuring trading activities are within risk tolerances and in compliance with internal policies and regulations).

Management, Legal and Reporting

Georgia Widdup

Georgia has earned a Bachelor of Science (Economics) in 1996 and graduated in 2003 with a Bachelor of Laws (Hons). She spent 14 years with Minter Ellison Lawyers where she acted for government and multi-national clients.

Georgia is a devoted equestrian athlete. She has represented Australia at championship level and has been a member of the Olympic and World Championship selection panel since 2011 and has held the position of Chair since 2012.

Georgia is a non-executive director of the Melbourne Rebels (an Australian professional rugby union team based in Melbourne).

Research Intern

Andrew Kellaway

Andrew has earned a Bachelor of Business (Finance) from Charles Sturt University and is presently studying to achieve a Graduate Diploma in Applied Finance at the University of New South Wales.

Andrew is a professional rugby player, currently playing for the Melbourne Rebels (an Australian professional rugby union team based in Melbourne) and the Australian Wallabies (Australia’s national team). Andrew has previously played professionally for the New South Wales Waratahs, the NEC Green Rockets (Abiko, Chiba, ‎Japan) and the Northampton Saints (Northampton, England).

Advisory Board


Andrew Michelmore AO

Andrew is a chemical engineer with more than 30 years’ experience in the natural resources industry including 12 years at WMC Resources, where he was CEO, and prior to that, he held senior roles in the company’s nickel, gold, alumina, copper, uranium and fertiliser businesses.

Andrew also spent two years working in London and Russia as CEO of En+ Group prior to being appointed CEO of MMG from 2009 until his retirement in 2017.

Andrew is currently Chairman of Century Aluminum Company (a company listed on the NASDAQ and the Iceland Stock Exchange).


Leigh Clifford AC

Leigh is a mining engineer with over 30 years’ experience in industry having spent 37 years at Rio Tinto, including the last seven years as Chief Executive.

Leigh was Chairman of Qantas Airways Ltd from 2007 until 2018 and is currently Non-Executive Director of Bechtel Inc. in the United States, a senior adviser to Kohlberg Kravis Roberts & Co. and has previously held directorships on the boards of organisations, including but not limited to Barclays Bank and Freeport-McMoRan.

Consumer Behaviour

Mark Harland

Mark has over 20 years of global automotive experience at General Motors with emphasis in sales, brand building and customer experience across a range of geographies (North America, Europe, Asia, Middle East and Africa).

Recent experience has been at AGL leading a project to launch an electric vehicle subscription offer.

Energy Technology

Mark Preston

Mark is Team Principal of the Techeetah Formula E Racing Team, and the founder and CEO of StreetDrone which is developing fully autonomous vehicle technology.

Mark has considerable experience in high performance engineering and technology, particularly in Formula One, having worked for McLaren, Arrows and Super Aguri.

T8 Gold

Jim Askew

Jim is an experienced mining engineer with more than 45 years’ international involvement in the industry as a Director and Chief Executive Officer for a range of Australian and international publicly listed mining, mining finance and other mining related companies.

Jim was a founding Director of Evolution Mining, Sino Gold, Yamana Resources, Asian Mineral Resources, Ausdrill Limited, West Wits Mining and Golden Shamrock. Jim’s other roles included Chairman of OceanaGold, Syrah Resources, PMI Gold, London Mining and CEO of Climax Mining, Golden Shamrock Mines (including subsidiary Ausdrill Limited), Black Range Minerals, Golden Star Resources and Rayrock Inc. His early career included founding James Askew Associates (now renamed AMC international consultants), Rock Instruments and James Askew Redpath.

Jim is presently on the Boards of Evolution Mining, Endeavour Mining, Syrah Resources and Federation Mining.

Sustainability technology

Erin Grover

Industry Technical Analysts


Alex Zadnik

Alex is a mechanical engineer and MBA with almost 40 years’ experience in the natural resources industry having spent 36 years employed by Rio Tinto, across and extensive variety of management roles involving the Company’s interests in iron ore, copper, gold, nickel, coal, bauxite.

Alex was Commercial General Manager of Rio Tinto Exploration from 1991-2006 accountable for selling non-core exploration assets and also for identifying major undeveloped resources with acquisition potential. This role involved working in detail within the disciplines of geology, mineralogy and engineering, and covering technical, financial and legal matters.


Stuart Brown

Stuart is a geologist with over 30 years’ experience in Australia and internationally at technical, managerial, executive and board levels across most areas of the upstream energy industry.

Stuart was Head of Strategy at Woodside, reporting to the CEO and the Board from 2007 until 2012. His other roles have included senior strategic and exploration positions at Woodside and over 20 years with Royal Dutch Shell covering the UK, Europe, Africa, the Middle East and Australia.


Distribution – Daruka Capital

Andrew Aitken

Andrew has earned a Bachelor of Business (Accounting) from University of Technology Sydney.

Andrew is a Chartered Accountant with over 25 years of funds management industry experience. He is the founding partner of Daruka Capital Partners and is responsible for setting strategy and directing distribution staff. Andrew has had extensive experience as a distribution executive and most recently he was the Head of Distribution for Bennelong Funds Management. Andrew guided the Institutional and Retail business from a standing start in 2008 to an A$8 billion multi-boutique powerhouse in 2017. Prior to this Andrew held senior roles at Ausbil Dexia, IOOF (Perennial) and Aberdeen Asset Management.

Distribution – Daruka Capital

David Cook

Distribution – Daruka Capital

Noel Corley

Noel is an experienced funds management distribution executive with more than 30 years of Investment Sales and Marketing experience in the retail space.

Noel introduced Fidelity Investments to the Australian financial advice community from 1985-1991, then spent 6 years with GT Management (which became LGT then Invesco), and his last retail sales position was with Deutsche Asset Management from 1999 to 2008. Since then he has run his own consulting business focusing on the financial services community.

Investor Relations + Distribution

Adam Wright

Adam started his career as a professional football player in the United Kingdom. Following retirement due to injury, Adam has spent over 10 years working with private collectors and investors in the high-value motor vehicles market in the United Kingdom, United States and Asia building car collections for investment.

Adam is a director of Tour De Force which specialises in adapting and restoring genuine Formula One chassis which have competed in world championship races to specialised track cars for racing enthusiasts.

Adam has relocated to Australia and joined T8, bringing experience in sales, customer service and investor relations.


Leighton Thomas

Leighton, based in New York, has been marketing to institutional investors for over twenty years.

Leighton began his career in capital markets at Solomon Smith Barney and has held various sales roles at Epoch Partners (acquired by Goldman Sachs), Bear Stearns, and J. P. Morgan.

Leighton co-founded a global primary research unit, Primary Insight, that completed a successful MBO from J.P. Morgan and today serves investment managers across six continents.

Philanthropic Foundations

Rob Tandy

Rob has earned a Science Degree, majoring in Genetics at the University of Melbourne as well as a Masters Degree in Building and Construction from the same university.

Rob has experience in industries including tourism, medical research, construction, finance and hospitality. Previously he was a co-owner and CEO of Captain’s Choice, a luxury tour operator and is a Co-Founder and Director of the Snowdome Foundation, which collaborates with and funds world-leading blood cancer researchers to accelerate new therapies and bring them to Australian patients faster.

Rob is driven by a strong sense of purpose which extends to his personal investment strategy whereby investments aspire to deliver attractive financial returns as well as positive environmental and social impacts.



Martine Fraser

Martine earned a Bachelor of Business (Accountancy) from RMIT University and is a member of the Institute of Chartered Accountants in Australia.

Martine has been Principal at AJ Baird since 2015. Ms Fraser’s prior roles include Principal at Crowe Horwath (2007-2015) and Manager at UHY Haines Norton (merged with McLean Delmo Bentleys) (2001-2007).


Maddison Stewart-Rice

Maddy has over 7 years’ experience in customer service, including 5 years as a bookkeeper in the accounting and finance industry.

Maddy has extensive experience with business administration and corporate secretarial matters.